They are to be widely available (eg woodies etc) and are classed as "Rough service bulbs". The ones I saw were from GE and Phillips and were frosted - and the ones I saw were only in bayonet cap, although I'm sure screw in will be available too.

Best of all was the price - ~€2.

I know someone will have to test them out for even illumination etc, but its good news!

Frosted bulbs are not enlarger bulbs. Enlarger (opal) bulbs are special purpose bulbs and thus not banned in the EU. You can buy them e.g. here or here or at silverprint.
They cost a bit more than an ordinary frosted bulb but about the same amount as a halogen reflector bulb for an enlarger.